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Woven Stainless-Steel Mesh as a Gas Separation Membrane for Alkaline Water-Splitting Electrolysis

William J. F. Gannon, Michael Warwick Orcid Logo, Charlie Dunnill Orcid Logo

Membranes, Volume: 10, Issue: 5, Start page: 109

Swansea University Authors: Michael Warwick Orcid Logo, Charlie Dunnill Orcid Logo

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DOI (Published version): 10.3390/membranes10050109

Abstract

A 316-grade woven stainless-steel mesh membrane was investigated as a gas-separation membrane for alkaline water-splitting electrolysis. Its resistance was measured using electrochemical impedance spectroscopy (EIS) and linear sweep voltammetry (LSV), with the conclusion that it presented approximat...

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Published in: Membranes
ISSN: 2077-0375
Published: MDPI AG 2020
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URI: https://cronfa.swan.ac.uk/Record/cronfa54309
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first_indexed 2020-05-26T13:08:24Z
last_indexed 2023-01-11T14:32:17Z
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spelling 2022-12-06T15:51:27.7027553 v2 54309 2020-05-26 Woven Stainless-Steel Mesh as a Gas Separation Membrane for Alkaline Water-Splitting Electrolysis 9fdabb7283ffccc5898cc543305475cf 0000-0002-9028-1250 Michael Warwick Michael Warwick true false 0c4af8958eda0d2e914a5edc3210cd9e 0000-0003-4052-6931 Charlie Dunnill Charlie Dunnill true false 2020-05-26 FGSEN A 316-grade woven stainless-steel mesh membrane was investigated as a gas-separation membrane for alkaline water-splitting electrolysis. Its resistance was measured using electrochemical impedance spectroscopy (EIS) and linear sweep voltammetry (LSV), with the conclusion that it presented approximately half the resistance of a comparable commercial alternative (ZirfonTM). Its gas-separation performance was analysed using gas chromatography (GC) at 140 mA cm−2, where it achieved 99.25% purity at the hydrogen outlet of the electrolyser. This fell to 97.5% under pumped circulation, which highlights that it is sensitive to pressure differentials. Nevertheless, this mixture is still more than a factor two inside the upper flammability limit of hydrogen in oxygen. It is hoped that such a low-cost material may bring entry-level electrolysis to many hitherto discounted applications. Journal Article Membranes 10 5 109 MDPI AG 2077-0375 membrane; water-splitting; electrolysis; alkaline; gas-separation; hydrogen production 23 5 2020 2020-05-23 10.3390/membranes10050109 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2022-12-06T15:51:27.7027553 2020-05-26T10:21:11.3123313 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemical Engineering William J. F. Gannon 1 Michael Warwick 0000-0002-9028-1250 2 Charlie Dunnill 0000-0003-4052-6931 3 54309__17345__c21d34796aa448b1842bc9d86f0f78ac.pdf 54309.pdf 2020-05-26T10:23:13.0591354 Output 1130690 application/pdf Version of Record true This is an open access article distributed under the Creative Commons Attribution License. true English https://creativecommons.org/licenses/by/4.0/
title Woven Stainless-Steel Mesh as a Gas Separation Membrane for Alkaline Water-Splitting Electrolysis
spellingShingle Woven Stainless-Steel Mesh as a Gas Separation Membrane for Alkaline Water-Splitting Electrolysis
Michael Warwick
Charlie Dunnill
title_short Woven Stainless-Steel Mesh as a Gas Separation Membrane for Alkaline Water-Splitting Electrolysis
title_full Woven Stainless-Steel Mesh as a Gas Separation Membrane for Alkaline Water-Splitting Electrolysis
title_fullStr Woven Stainless-Steel Mesh as a Gas Separation Membrane for Alkaline Water-Splitting Electrolysis
title_full_unstemmed Woven Stainless-Steel Mesh as a Gas Separation Membrane for Alkaline Water-Splitting Electrolysis
title_sort Woven Stainless-Steel Mesh as a Gas Separation Membrane for Alkaline Water-Splitting Electrolysis
author_id_str_mv 9fdabb7283ffccc5898cc543305475cf
0c4af8958eda0d2e914a5edc3210cd9e
author_id_fullname_str_mv 9fdabb7283ffccc5898cc543305475cf_***_Michael Warwick
0c4af8958eda0d2e914a5edc3210cd9e_***_Charlie Dunnill
author Michael Warwick
Charlie Dunnill
author2 William J. F. Gannon
Michael Warwick
Charlie Dunnill
format Journal article
container_title Membranes
container_volume 10
container_issue 5
container_start_page 109
publishDate 2020
institution Swansea University
issn 2077-0375
doi_str_mv 10.3390/membranes10050109
publisher MDPI AG
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Chemical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Chemical Engineering
document_store_str 1
active_str 0
description A 316-grade woven stainless-steel mesh membrane was investigated as a gas-separation membrane for alkaline water-splitting electrolysis. Its resistance was measured using electrochemical impedance spectroscopy (EIS) and linear sweep voltammetry (LSV), with the conclusion that it presented approximately half the resistance of a comparable commercial alternative (ZirfonTM). Its gas-separation performance was analysed using gas chromatography (GC) at 140 mA cm−2, where it achieved 99.25% purity at the hydrogen outlet of the electrolyser. This fell to 97.5% under pumped circulation, which highlights that it is sensitive to pressure differentials. Nevertheless, this mixture is still more than a factor two inside the upper flammability limit of hydrogen in oxygen. It is hoped that such a low-cost material may bring entry-level electrolysis to many hitherto discounted applications.
published_date 2020-05-23T04:07:46Z
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score 11.036378

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